Comment by vel0city
1 month ago
> I'm saying there's lots of situations where someone might not have access to either a phone or an internet connection for it. And when this happens, you really don't want to be left without a way to access all vital digital services.
And when that happens I'm usually glad my credential is a passkey on my keyring, as chances are if I don't have my phone and I haven't auth'd on to some computer I almost certainly don't have access to my password vault. But hey, my passkey works just fine without my phone. And I can trust that once I unplug my authenticator and log out of that session, there's no long lasting credentials left behind. I don't get that with passwords.
Aren't passkeys great?
You go to country X (USA sounds good to put in here).
You get mugged.
They take your phone and keyring.
They can't do anything with it since it's locked, but you don't have it.
Aren't passkeys great?
Wouldn't I have the same problem with passwords? I would lose my phone and be unable to two factor log in to my Gmail account or bank from someone else's device?
With passwords? No.
With 2FA? Yes. 2FA is almost just as stupid and almost just as bad for regular users as passkeys are, but it got adopted due to historical loophole - by far the most popular form was TOTP delivered via SMS, then "authenticator" apps, both of which keep the code transferable - you can receive it on one device, transfer to yourself or someone else (which is a feature, not a bug) via any channel, and get it to work. Passkeys were created specifically to close that loophole.
Plus, SMS didn't allow for vendor lock-in, which is arguably why they're so hated in security circles (SIM-jacking is real, but doesn't scale anywhere near enough to warrant deprecating it as mechanism for regular users).
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A passkey or a 2FA requiring a non-trivial device are functionally equivalent. Passkeys and app driven 2FA are the same when shit goes bad.
They can’t do anything with it
I have a backup key at home
Mission accomplished
But the problem is that you can't really backup passkeys and because people are frankly frequent tricked into using them, they have no good recovery options.
I know plenty of people who only have a phone, no other devices. They don't backup that phone, they should but they don't. They don't use a password manager either, maybe they should, but they don't.
My issue with passkeys are that they are designed for a reality that don't exist, or at least only exists for people who are already doing a lot to secure their devices.
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Do you have a plan for getting home without access to any of your accounts? And one of the problems with passkeys is that it's unreasonably difficult to keep a backup key.
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Great, now I just need to get back home to use my uncompromised accounts (which would have still been protected by my device as long as the thieves aren't NSO Group, but whatever). Gee, it seems my tickets back home were taken with my stolen phone! Not to worry, they sent me an email confirmation, so all I need to do is log into my passkey-protected email on my friend's phone and have them download my ticket in addition to theirs, or print them at a public computer. Oh wait
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